Title :
Measurement of piezoelectric constant of LiNbO3 crystal using interferometric optical fibre sensor
Author :
Okamura, Hiroyuki ; Minowa, J.
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
3/6/1989 12:00:00 AM
Abstract :
The piezoelectric constant of LiNbO3 crystal, d33, which has been controversial, is measured with an optical fibre sensor using homodyne interferometry. The minimum detected displacement of the LiNbO3 crystal is well under 0.3 AA and with this, d33 is determined as 0.7*10-11 m/V.
Keywords :
displacement measurement; fibre optic sensors; integrated optics; light interferometers; lithium compounds; piezoelectric materials; 0.3 A; LiNbO 3 crystal; d 33; homodyne interferometry; interferometric optical fibre sensor; piezoelectric constant measurement;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890272